Direct attach cable

Abstract

A direct attach cable includes a cable connected to a paddle card, a housing formed to store the paddle card and the end portion of the cable, a latch engaged with an engaging portion of a plate spring provided on the cage when the housing is inserted in the cage, a de-latching lever in a lever shape for releasing the engagement between the latch and the plate spring, the de-latching lever pushing up the plate spring to disengage the engaging portion of the plate spring from the latch, a link formed in a frame shape so as to be fitted to the housing on the rear end side in the insertion direction, the link pushing up the plate spring via the de-latching lever by moving toward the rear end side, and a pull-tab for moving the link on the rear end side of the housing in the insertion direction.

1. A direct attach cable, comprising:
 a cable that an end portion thereof is connected to a paddle card; 
 a housing formed to store the paddle card and the end portion of the cable and to be insertable into and extractable from a cage as a connection target of the paddle card, the housing having a square cross section in a direction perpendicular to an insertion direction; 
 a latch formed into a wedge shape protruding on one surface of the housing on a rear end side in the insertion direction and engaged with an engaging portion of a plate spring provided on the cage when the housing is inserted in the cage; 
 a de-latching lever in a lever shape for releasing the engagement between the latch and the plate spring, the de-latching lever being provided posterior to the latch of the housing in the insertion direction and pushing up the plate spring to disengage the engaging portion of the plate spring from the latch; 
 a link formed in a frame shape so as to be fitted to the housing on the rear end side in the insertion direction and so that an inner surface thereof surrounds the de-latching lever on an effort side, the link pushing up the plate spring via the de-latching lever by moving toward the rear end side in the insertion direction; and 
 a pull-tab for moving the link on the rear end side of the housing in the insertion direction. 
 
     
     
       2. The direct attach cable according to  claim 1 , wherein
 the de-latching lever comprises an inclined surface inclined toward a front end side in the insertion direction at an effort side end portion thereof, and 
 the inner surface of the link climbs on the inclined surface of the de-latching lever by movement of the pull-tab toward the rear end side in the insertion direction, thereby pushing the effort side end portion of the de-latching lever in a direction coming close to the housing and pushing up the plate spring. 
 
     
     
       3. The direct attach cable according to  claim 1 , further comprising:
 a compression coil spring for applying a force to an effort side end portion of the de-latching lever in a direction going away from the housing, the compression coil spring being provided between the de-latching lever and the one surface of the housing. 
 
     
     
       4. The direct attach cable according to  claim 1 , further comprising:
 an extension coil spring for applying a force to the link in a direction coming close to the housing, the extension coil spring being provided between the link and an end surface of the housing on the rear end side in the insertion direction. 
 
     
     
       5. The direct attach cable according to  claim 4 , wherein
 the extension coil springs are symmetrically arranged on the end surface of the housing on the rear end side in the insertion direction along a direction parallel to the one surface of the housing so as to sandwich the cable. 
 
     
     
       6. The direct attach cable according to  claim 2 , wherein
 the de-latching lever further comprises a rotation shaft that is arranged anterior to a center of the de-latching lever in the insertion direction such that a force acting on a point of load is larger than a force applied to the point of effort.